How does sea turtle defend against predators?
The sea turtle can actually turn to the side if faced with a predator like a tiger shark, which will try to get the shell or a flipper in its mouth. When the turtle turns its shell facing the shark, the shark can't wrap its mouth around the shell, so it acts like a shield.
Because the sea turtle has shell that is hard to bite through, there are few predators for the adult sea turtle, such as: sharks, crocodiles, octopi (octopuses), and even humans. The baby sea turtles have far more predators: seagulls, cranes, snakes, crabs, artificail lighting, sea walls, and also sometimes humans. Us humans are the WORST predator to sea turtles!